Fogel, R. W. (1964). Railroads and American economic growth: Essays in econometric history. Johns Hopkins Press.
Chicago-viite (17. p.)Fogel, Robert William. Railroads and American Economic Growth: Essays in Econometric History. Baltimore: Johns Hopkins Press, 1964.
MLA-viite (8. p.)Fogel, Robert William. Railroads and American Economic Growth: Essays in Econometric History. Johns Hopkins Press, 1964.
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